4steps from the big bang
116things can go into it
fireplace
ProductObject
Chimneys only became common in Europe around the 1100s. Before that, smoke left through a hole in the roof.
First appearedDate not yet known
Chimneys only became common in Europe around the 1100s. Before that, smoke left through a hole in the roof.
Nothing on this map is built from it yet.
Chimneys only became common in Europe around the 1100s. Before that, smoke left through a hole in the roof.
The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.